Digital Image Processing Essay.

Digital Image Processing Essay.

 

Elementary Introduction to
Image Processing Based Robots
2009

Acknowledgement

P age |2

• My Senior Sourabh Sankule
• My Friends Mayank and Ashish
• Robotics Club, IIT Kanpur
• Electronics Club, IIT Kanpur
• Centre for Mechatronics, IIT Kanpur

Ankur Agrawal

IIT Kanpur

P age |3

Contents
Introduction …………………………………………………………………………………………………. 4
MATLAB ……………………………………………………………………………………………………….. 4
What does MATLAB stand for? …………………………………………………………………………………………4
Getting acquainted with MATLAB …show more content…

Image processing is quite a vast field to deal with. We can identify colors, intensity, edges, texture or pattern in an image. In this tutorial, we would be restricting ourselves to detecting colours (using
RGB values) only.Digital Image Processing Essay.

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Getting acquainted with MATLAB environment
For those who have just finished installing MATLAB on their system and can’t figure out from where to start, no need to worry! This tutorial will first make you well acquainted with its very basics and then move further.Digital Image Processing Essay.
So, a typical MATLAB 2009 window looks like:

Ankur Agrawal

IIT Kanpur

P age |5

There are 4 main windows:
Command window: This is the main window where you write the commands, as well as see the outputs. In other words, here is your interaction with the software.
Command History: As the name suggests, it shows the list of the commands recently used in chronological order. Hence, you can double click on a command to execute it again.
Current directory: It is the default directory (folder) for saving your files. All the files which you make (like m-files, as discussed later) are saved here and can be accessed from here directly. The location of the current directory is shown in the toolbar at the top. You can change it by changing the address here.Digital Image Processing Essay.

INTRODUCTION 1.1 IMAGE PROCESSING Image processing is defined as the process of converting an image into digital form and performing certain operations on it. These operations are performed so that enhanced image can be obtained from the original image or we can extract some useful information from the original image. The image processing is a type of signal dispensation in which the input is an image which is usually in the form of video frames, photograph etc. The output of the image processing can be image or characteristics that are associated with that input image. Usually image processing considers images like two dimensional signals, where we apply already set processing set methods on them. With the modern digital technology it is possible to manipulate images (also known as multidimensional signals) with certain systems. These systems ranges from certain digital circuits to parallel computers. The manipulation of the images can be divided into three major categories: 1. Image processing. 2. Image analysis. 3. Image understanding. The image processing includes systems where the input is in the form of image where processing methods have been applied that produces output in the form of images. The output image also represents the parameters that are used in images. These parameters helps in defining the image.Digital Image Processing Essay.
Elementary Introduction to Image Processing Based Robots 2009 Acknowledgement P age |2 • My Senior Sourabh Sankule • My Friends Mayank and Ashish • Robotics Club, IIT Kanpur • Electronics Club, IIT Kanpur • Centre for Mechatronics, IIT Kanpur Ankur Agrawal IIT Kanpur P age |3 Contents Introduction …………………………………………………………………………………………………. 4 MATLAB ……………………………………………………………………………………………………….. 4 What does MATLAB stand for? …………………………………………………………………………………………4 Getting acquainted with MATLAB…show more content…
33 Ankur Agrawal IIT Kanpur P age |4 Introduction Here is a small tutorial that suffices you with the basic concepts required to put up eyes on your robot. Trust me, if you are into robotics, you are going to enjoy the next few pages. After all, making “a robot that can see” would really be cool! So let’s get started! A vision based robot has an image acquisition device like a webcam as its eyes. Then we need a processor that can make sense out of those captured images and actuators like dc motors for navigation. One key point to note is that Image Processing has huge computational requirements, and it is not possible to run an image processing code directly on a small microcontroller. Hence, for our purpose, the simplest approach would be to run the code on a computer, which has a webcam connected to it to take the images, and the robot is controlled by the computer via serial or parallel port.Digital Image Processing Essay.

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